Heliocentric Julian Day

（重定向自Heliocentric Julian Date）

The Heliocentric Julian Date (HJD) is the Julian Date (JD) corrected for differences in the Earth's position with respect to the Sun. When timing events that occur beyond the Solar System, due to the finite speed of light, the time the event is observed depends on the changing position of the observer in the Solar System. Before multiple observations can be combined, they must be reduced to a common, fixed, reference location. This correction also depends on the direction to the object or event being timed.

单词	Heliocentric Julian Date
释义	Heliocentric Julian Date 英语百科 Heliocentric Julian Day （重定向自Heliocentric Julian Date） The Heliocentric Julian Date (HJD) is the Julian Date (JD) corrected for differences in the Earth's position with respect to the Sun. When timing events that occur beyond the Solar System, due to the finite speed of light, the time the event is observed depends on the changing position of the observer in the Solar System. Before multiple observations can be combined, they must be reduced to a common, fixed, reference location. This correction also depends on the direction to the object or event being timed.
随便看	embroidered portrait的意思 embroidered pure silk table cloth的意思 embroidered purse的意思 embroidered quilt bag的意思 embroidered quilt cover的意思 embroidered rayon satin spread的意思 embroidered robe的意思 embroidered round cushion cover的意思 embroidered satin brocade blouse的意思 embroidered satin handbag的意思 embroidered satin shoe的意思 embroidered satin shoes的意思 embroidered satin spread的意思 embroidered scarf的意思 embroidered screen的意思 Embroidered shawl的意思 embroidered shirt的意思 embroidered shirt with long sleeves的意思 embroidered shirt with short sleeves的意思 embroidered shoes的意思 embroidered silk的意思 embroidered silk bed necessities的意思 embroidered silk garment的意思 embroidered silk tobacco pouch的意思 embroidered skirt的意思